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目的:采用Box-Behnken响应面法对四季青提取条件进行优化.方法:建立长梗冬青苷的HPLC测定法,并对该法进行验证;以长梗冬青苷的提取率为因变量,用Box-Behnken响应面法优化药液比、乙醇浓度、回流时间和提取次数4个因素.结果:最佳条件为药液比1:10,乙醇浓度为70%,回流温度为80℃,提取次数为3次.结论:含量测定法和最佳提取工艺结果可靠.“,”Objective:To optimize the extraction process of Ilex chinensis Sims by Box-Behnken response surface method. Meth-ods:The HPLC determination of pedunculoside was performed and validated. With the extraction rate of pedunculoside as the index, the influencing factors including material-liquid ratio, ethanol concentration, reflowing temperature and decocting frequency were opti-mized by Box-Behnken response surface method. Results:The optimized parameters were as follows:the material/liquid ratio was 1:10, the ethanol concentration was 70%, the ultrasonic temperature was 80℃,and the decocting frequency was three times. Conclu-sion:The HPLC method and the best extraction conditions are reliable.